157134609 has 6 divisors (see below), whose sum is σ = 226972226. Its totient is φ = 104756400.

The previous prime is 157134577. The next prime is 157134611. The reversal of 157134609 is 906431751.

157134609 is a `hidden beast` number, since 15 + 7 + 1 + 34 + 609 = 666.

It can be written as a sum of positive squares in only one way, i.e., 149450625 + 7683984 = 12225^2 + 2772^2 .

It is not a de Polignac number, because 157134609 - 2⁵ = 157134577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157134619) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8729692 + ... + 8729709.

Almost surely, 2^157134609 is an apocalyptic number.

It is an amenable number.

157134609 is a deficient number, since it is larger than the sum of its proper divisors (69837617).

157134609 is a wasteful number, since it uses less digits than its factorization.

157134609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17459407 (or 17459404 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 157134609 is about 12535.3344191529. The cubic root of 157134609 is about 539.6232042226.

The spelling of 157134609 in words is "one hundred fifty-seven million, one hundred thirty-four thousand, six hundred nine".